.square {
    width: 60px;
    height: 60px;
    color:darkblue;
    font-weight: bold;
    border: 1px #282c34 solid;
    background-color: azure;
    text-align: center;
    line-height: 60px;
    font-size: 38px;
    caret-color: transparent;
}
.red{
    background-color: red;
}